diff options
Diffstat (limited to 'doc/platform.n')
| -rw-r--r-- | doc/platform.n | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/doc/platform.n b/doc/platform.n index 053448d..1553698 100644 --- a/doc/platform.n +++ b/doc/platform.n @@ -12,7 +12,7 @@ platform \- System identification support code and utilities .SH SYNOPSIS .nf -\fBpackage require platform ?1.0.4?\fR +\fBpackage require platform ?1.0.10?\fR .sp \fBplatform::generic\fR \fBplatform::identify\fR @@ -45,6 +45,7 @@ architecture a Tcl program is running on. .SH COMMANDS .TP \fBplatform::identify\fR +. This command returns an identifier describing the platform the Tcl core is running on. The returned identifier has the general format \fIOS\fR-\fICPU\fR. The \fIOS\fR part of the identifier may contain @@ -53,14 +54,33 @@ may contain dashes as well. The \fICPU\fR part will not contain dashes, making the preceding dash the last dash in the result. .TP \fBplatform::generic\fR +. This command returns a simplified identifier describing the platform the Tcl core is running on. In contrast to \fBplatform::identify\fR it leaves out details like kernel version, libc version, etc. The returned identifier has the general format \fIOS\fR-\fICPU\fR. .TP -\fBplatform::patterns \fIidentifier\fR +\fBplatform::patterns \fIidentifier\fR +. This command takes an identifier as returned by \fBplatform::identify\fR and returns a list of identifiers describing compatible architectures. +.SH EXAMPLE +.PP +This can be used to allow an application to be shipped with multiple builds of +a shared library, so that the same package works on many versions of an +operating system. For example: +.PP +.CS +\fBpackage require platform\fR +# Assume that app script is .../theapp/bin/theapp.tcl +set binDir [file dirname [file normalize [info script]]] +set libDir [file join $binDir .. lib] +set platLibDir [file join $libDir [\fBplatform::identify\fR]] +load [file join $platLibDir support[info sharedlibextension]] +.CE .SH KEYWORDS operating system, cpu architecture, platform, architecture +'\" Local Variables: +'\" mode: nroff +'\" End: |